Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K7JRN callsign genealogy
Currently held by Nicholson, John R
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by K7JRN's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held K7JRN.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K7JRN, oldest first.
- BROWN, RICHARD W WA1990-01-09 → cancelled 2002-03-07
- Nicholson, John R AZ2015-04-03 active